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Description Of Business And Basis Of Presentation (Average Exchange Rates) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Average Rates	1.2593	1.3325	1.2515	1.3539
Average Rates % Change	5.50%		7.60%
Euros (EUR) [Member]
Currency [Line Items]
Average Rates	0.8482	0.8557	0.8360	0.8905
Average Rates % Change	0.90%		6.10%
Polish Zloty (PLN) [Member]
Currency [Line Items]
Average Rates	3.8721	3.8013	3.8013	3.9397
Average Rates % Change	(1.90%)		3.50%
British Pound (GBP) [Member]
Currency [Line Items]
Average Rates	0.7254	0.7745	0.7221	0.7874
Average Rates % Change	6.30%		8.30%